Means for regulating explosion-engines driving blast and like apparatus.



ST AND LIKE PATENTED JULY 3 H. RICHTER. LOSION ENGINES DRIVING BLA APPARATUS. ATION. FILED APR.28,1903.

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HANS mourns, or NUREMBEBG, GERMANY, ASSIGNOR TO THE FIRM on 'UND MASCHINENBAU- .VEREINIGTE MASCHINENFABRIK AUGSBURG I GESELLSCHAFT NiIltNBERG A. GK, OF NUREMBERG, GERMANY.

, ants rostrum/mat EXPLGSIQN-ENGENES cmvmc BLAST AND LIKE APPARATUS.

Specification of Letters Patent. Patented Ju1y3, 1 906.

Application filed April 28, 1903., Serial No. 154,713. I

, No. cam ra valves 91 and h, respectively, may be distributed, for instance, in semicircles. The compressed air .passes through the valve h, first into a collecting-chamber t and from there into the blast-pipe is. From the latter a branch pipe I is carried to the air-admission valve bet the gas-engine, said branch pipe I p being adapted to be connected, by'means of a shut-oii valve or the like m, either with the outer air or, as shown To aZZ whom it may concern.-

Be it known that I, Hans RICHTER, engirieer, a subject of the German'Emperor, residing in Nuremberg, in the Empire of Ger- 5 many, (whose full ostal address is Gleis biihlstrasse, Nurem erg,) have invented certain new and useful Improvements in Means for Regulating Explosion-Engines Driving Blast and Like Apparatus, of which the following is a specification.

gas-motor is closed to The use of gas-engines for driving blowing or blast apparatus as hitherto had. severe drawbacks, as it was necessary to run them at almost their highest power in order to Work economically, while pressures considerably above the normal are from time to time required in the blast-for instance, in the case of chokin of the -furnace, These two opposing conditions are allowed for by the present invention, in that the blowing-machine itself is employed in order to strengthen the action of they gas-engine when a larger quantity of air is to be, supplied or a higher pressure to be produced by the said blowingengine. In this case the supply of air to the the outside air and instead thereof connected with an airpi e branched off one of the blast-cylinders or t e blast pipe, while a suitable device for in-- creasing the gas-pressure, such as a fan inserted in the gasipe, is set in o oration, so that both air un er pressure an gas under pressure are at dis osal for feeding the gasengine. The regulator of the gas-motor is further so adjusted that the residues of comustion remaining after each expulsionstroke are entirely driven out by the entering air under pressure, the introduced mixture consist-in thus exclusively of combustible gases and of atmospheric air, while there are no residues of combustion from the preceding explosion contained therein or at least no considerable qkiliantities of such residues.

Consequently t ere is increased not only the initial pressure of the ex losive mixture, but also the quantity of expibsive parts which it contains.

The operatin gas-engine, the cylinder a of which is provi ed with an air-i1ilet valve 6, gasinlet valve and exhaust-valve 0?, acts, by means of a crank-shaft e,on a blast-cylinder f, on the covers of which inlet and outlet 's ondin a roximatel to the full atmosb P? y in the drawings, with the blast-pipe 7c. The gas-supply pipe n is also forked into two parts 0 p, in one of which, 0, a fang is inserted. The pipe n may be placed in communication with each of these parts 0 or p, as the case may be, by means of valve 7 and also closed against the other one, or 0, as the case may be. Both parts 0 and p connect behind the fan With a common gas-pipe s, which ends at the gas-1nlet valve 0. h

In regular Working the branch pipe I is in communication with the outer air, while the fan g is shut oil from the gas-inlet ipe. The gas-engine consequently receives 0th air on the course m I b and also gas on the course a r p s at atmospheric pressure, and therefore works economically if it is of such dimensions that it gives an effective delivery at about the normally required pressure of air correp eric initia pressureof the mixture. If, however, a lar 'er quantity of air is to be de livered by the blowing-engine or a higher eX- cessressure-produced, the air-pipe Z, leading to t e gas-engine, is closed by closing the valve m to the outer air, and at the same time it is brought in communication with the blast-pipe lacontaining compressed air. The valve 7* must also be so gas assing out of the pipe 17, centrically into the any (operated by means of an electro motor or other suitable machine) is brought by the latter to a higher pressure and 0011- veyed to the pipe 8 and the gas-inlet valve 0. The valves r and m are influenced, with the aid of a system of lever-rods t t t t t t from a centrifugal governor u, which is turned by a wormand wheel 'v w, provided on the crank-shaft e in such a manner that said valves occu y during normal work the positions m 1" in icated. They are adjusted by means of the governor-sleeve 0c,

turned that now the I pipe connection from the atmosphere and conwhich is shiftedto the left as soon as the centrifugal balls u drop, so that they occupy the position m r drawn in full-lines.

The distribution-gear of the gas-engine bein suitably arranged and adjusted, the 'resu t of the combination described is that the method of workingcalledforin theopening paragraphs of this specification is obtamed.

I declare that what I claim is- I In an apparatus for increasing the power of explosion-engines which drive blast-em gines, the combination of a blastipe connected to the blast-engine, a oylin er, a piston therein, a connection from the cylinder to a gas-supply,'a connection from the cylinder to the blast-pipe, an opening to the blastconsisting of a gas-forcing device in one part of the connection and a valve for allowing the gas to flow directly to the cylinder when air at atmospheric pressure is reqfiired or for directing the gas .to the gas-forcing means when an increased pressure is reqmred.

In witness whereof I have hereunto setrn hand in presence of two witnesses.

HANS RICHTER.

trolling means whereby either compressed I 

